Fermion production in time-dependent fields
arXiv:hep-th/0302229 · doi:10.1103/PhysRevD.68.105005
Abstract
The exact fermion propagator in a classical time-dependent gauge field is derived by solving the equation of motion for the Dirac Green's functions. From the retarded propagator obtained in this way the momentum spectrum for the produced fermion pairs is calculated. Different approximations and the exact solution for the propagator and the momentum spectrum are presented.
28 pages, 4 figures, typos corrected, references added
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